Radiator.



j. M. FEDDERS.

RADIATOR.

APPLxc/xlora HLED SEPI. 12. :911,

FEDDE RS RAmAQR. APPLICATiON FILE() SEP?.

2 SHEETSMSHEET 2.

I walls.

'UNITED sTA'ipEs iATENT OFFICE;

JOHN I. FEDDEBS, 0F BUFFALO, NEW YRZ, ASSIGNB T9 FEDDEBS MANUFCTUBINGCOMPANY, mC., OF BUFFALD, 'MEW YOEK, A COBPGBATION D" NEW YBKSpecification o' Letters Patent.

Patented Feb. i8, 1919.

Application tiled September 3,521, mi?. Serial No. 1913327.

To all 'whom it may concern:

Be it known that I, Jorrit M. Ennemis;

a citizen of the United States, residing at Buffalo,` in the county otErie and State 6 of New York, have invented new and useful 10 the waterof a gas engine and has for its object the production of such a radiatorwhich is simple and inexpensive in construe tion, efficient in operationand exceedingly strong so that the same is capable ot with- 16 standingany unusual strains to .which the same may be subjectedwhile in use.

In the accompanying drawings: Figure 1 is a front elevation, partly insection, of

theradiator embodying my invention. 20 2 is a horizontal section takenon line 2--2 Fig. 1. Fig. 'is a fragmentary vertical section taken onthe correspondingly numbered line in Fig. 2. Fignd is a fragmentaryperspective View of one of the radiating 26 members of the corecontaining my improvements. Fig. 5 isa plan view ot part of a blank fromwhich the radiating member is constructed. Fi 6 and 7 are fragmentaryperspective views' of the Water tube Similar characters of referencerefer to like parts in the several figures.

In its general construction my improved radiator comprises a pluralityor upright i5 water tubes or passagesl which are arranged side by sideand are of tortuous or zigzagged form, and a plurality of horizontal airpassages 4, arranged between the several water tubes or passages. In thecomplete v4l) radiator the upper and lower ends ot the water tubes areconnected with the conduits or boxes forming part of the circulatingsystem of the gas engine so that the hot water from the engine as itpasses through 46 these water tubes is cooled bythe currents of airpassing horizontally through the air assiiges.

Each of the water tubes is constructed of at its opposite edges and ononeside of this wall and on the turns 7 of alternating corrugationsthereof which oisets project laterallyroin the concave sides of therespective corrugations. The turns of the remaining corrugations are notprovided with oH-sets but are continuous from edge to edge of this tubestrip or wall, thereby forming straight or continuous valleys or bottoms8 on the opposite side of this strip. The two Awalls of each group areassembled so that they are parallel and engage each other at theiropposite edges, thereby forming a water passage between the same. Whenthus assembled the convex sides of the con tinuous turns of thecorrugations of one wall engage the concave sides ofthe osets of theturns of the other companion wall, thereby forming closed joints betweenthe walls at their opposite edges and leaving a space between thecentral parts of these walls which constitute the water passage.

The plurality of air passages 2 arranged between two water tubes areformed, partly by the two opposing walls of these tubes and partly by aradiating member arranged between these two tube walls. In its preferredforni this radiating member comprises a plurality of parallel transverseplates 9 arranged in longitudinal rows between tlie opposing walls oftwo tubes and each oit these plates engaging its opposite edges with thecontinuous bottoms 8 ot the corresponding corrugations in the opposingsides oi said walls. a plurality of longitudinal plates i0 arrangedlengthwise in a row between said walls and alternatingwith' -saidtransverse plates, and a pluralityv of coupling straps il which arearranged par allel with said transverse plates and each of 9i which isconnected at its inner side. edge with one of the side edges of theadjacent longitudinal plate. while its outer side edge 'is connectedwith the side edge of one of the adjacent transverse plates. In the pre-100 two outer walls orstrips 5 of sheet metal;

89 each of which is .bent or corrugated into" have their inner edgesconnected with op 10i zigaagged form for producing a succession positeside 'edges otono of the longitudinal of summits and valleys on eachside of the plates. while the outer edges of these straps strip? whichsummits and valleys alternate are connected with the diagonally oppositeouter or side edges of the adjacent transvvij-iwith each other. Each ofthese water tube, Wwalls or strips is provided with ofi-sets 6. verseplates. The transverse and longitudi-ll nal plates of eachradiatingmember are of the same width as the walls ot the water tubesand the front and rear ends or e ges of the same are flush. The couplingst ps are however, of less width than said plates and are arranged at adistance from the ends or end edges of said plates, thereby causing theradiating members to present the appearance olf single lines bothlengthwise and crosswise at the front and rear side of the radiatorcore. The transverse plates of the radiating members are provided withopenings l2 which are preferably formed on the central parts thereof,which serves to reduce the weight ofthe saine and also to provideinter-communication between adjacent air tubes so as to permit a freecirculation of air both vertically and horizontally through the airtubes or passages.

Each ot' the radiating members is preferably constructed from a sheet ofmetal which is lirst stamped out in the form o'l'l a blank as shown inFig. 5 and then bent or folded into the form shown in Figs. l, 3 and 4.

The two water tube walls on opposite sides of' each radiating member arepreterably connected with each other at the upper and lower ends of thecompanion radiating member and those two walls are preferably 'formedfrom a single strip ol sheet metal which may be doubled or folded uponitselt1 midway ci its length and al' the end ot' the companion radiatingmember. as shown at 13 in Fig. l. while the opposite ends of this stripforming these two tube walls may be interlocked with each other by meansof a lock seam or similar joint., as shown at 14 in the same figure.

A ra'diator unit is thus formed in which the two opposing walls ofadjacent water tubes form the outer members. while the radiating elementbetween the same forms the intermediate member. ln the manufacture ofthe radiator a plurality of such units are assembled side by side sothat the outer walls ot each unit interlock with the water tube walls ofadjacent units aft-er which the core thus formed by the plurality ofunits is dipped in solder so as to Permanently connect the front andrear edges of each pair ot' water tube walls and render the same watertight or leak proof and at the same time cause the solder to unite theradiating members with the water tube walls so as to hold the samefirmly against displacement relatively to each other.-

lnasmuch as theQ lateral edges of the transverse plates and couplingstra-ps engage with the bottoms of the continuous turns of lthecorrugations of the water tube walls. these parts are accurately, easilyand reliably centered relatively to each other, and owing to the',increased soldering sur$1 epesses face which is by this means obtainedbetween .the lateral or side edges vof these transverse plates andcoupling straps and the continuous bottoms of the corrugations of thewater tube walls, a much stronger and durable connection is obtainedbetween the same which increases the rigidity '0f the radiator core andenables the same to withstand more effectively the shocks or strains towhich the same is liable to be subjected while in use.- l

In practice the outer walls of the radiator tubes are constructed ofcopper -or of brass or similar metal which vis not liable to corrode byreason of the action of the water which passes through the same and thusrenders the l radiator water tight. The radiatingmembers may, however,be constructed of terne or other inferior metal which is of lowercostthan the water tube walls inasmuch as the same is not exposed Ato thecorroding action of water, but still vpossesses sufhcient heatconducting capacity to eiiiclently carry oli the heat from the watertube walls to the adjacent atmosphere. The radiator core can ,thereforeby ithis means be produced at much less cost and still providesufficient radiating capacity for all practical purposes.

. l claim as my invention lz 1. A radiator unit comprising two outercorrugated .walls each of which is ot zig-zag forni, and an intermediateradiating member arranged between said outer walls and' comprising aplurality of transverse plates arranged in a longitudinal rowV betweensaid outer wall and each engaging its opposite side edges with thebottoms of the corresponding corrugations on the opposing sides of saidouter walls, a plurality of longitudinal plates arranged between saidouter Walls and alternating with said transverse plates, and a pluralityof coupling straps'connecting opposite side edges of each longitudinalplate with the side edges of the adjacenttransverse plates.

2. A radiator Aunit comprising two outer corrugated walls each of whichis of zig-zag form, and an intermediate radiatin member arranged betweensaid outer wa ls and comprising a plurality of transverse platesarranged in a longitudinal row between said outer walls and eachengaging its opposite side edges with the bottoms of the corn respondingcorrugations on the opposing sides of said outer walls, a plurality oflongitudinal ,plates arranged between said outer walls and alternatingwith said transversel plates, and a plurality of connecting straps, apair of which have their inner edges connected with opposite side edgesof one of the longitudinal plates while their outer edges'are connectedwith the diagonally opposite side edges of the adjacent transverseplates.,

s 3. Amradiator unit comprising two outer c'orrugatedfwalls each ofwhich is of zig-zag form, and an intermedi-ate radiating memberarranged' between said outer walls and coniprising' a plurality oftransverse'plates ar- ,v rangedin 'a longitudinal row between said-outer VWalls and leach engaging its oppositev side edges with. thebottoms of corresponds ing corrugations on the opposing sides ot saidouter Walls, a plurali-ty of longitudinal plates arranged between Saidouter walls Vand alternating with'said 'transverse plates,

and `a plurality of coupling straps Whieli 'f 'are arranged parallelwith said transverse 4plates` and one of which connects. one side l edgeof a longitudinalvplate with-oneside arranged in a longitudinal rowbetween said f edge of the adjacent transverse plate While another voneconnects theopposite side edge ofthe respetive, longitudinal plate withthe diagonally opposite side .edge of another transverse plate.4

4. A radiator unit comprising two outer n corrugated'walls,` each ofwhich 'is of zig-zag form, andan intermediate radiating member arrangedbetween said outer walls and comprising a plurality of transverse platesouter Walls and each engaging its opposite side edges with the bottomsof the corresponding corrugations on. the opposing sides of said outerwalls, a plurality of longitudinalA plates arranged between 4said outerwalls and alternating with said transverse plates,

and a plurality of coupling stra s one of whicheonnects one side edge oaongitudinal plate with one side edge of an ladjacent transverseplatewhile another oneJ connects ber arranged between said outer walls and'comprising a plurality of transverse plates arranged in a longitudinalrofw betweenl saidouter walls and each engaging its oppo`` v sitesidey'edges with lthe bottoms of the corresponding corrugations on theopposing sides of said outer walls. a plurality of lo n"k i gitudinal,plates 4arranged between said outer walls and alternating with saidtransverse' plates, andl al plurality of coupling straps one of whichconnects oneside edgeof. a longitudinal platewith one side edge of anadjacent transverse plate while an other one connects t e opposite sideedge of.,

thei respective longi udinal plate with the diagonally opposite sideedge of another transverse plate. vsaid plates being of the samewidthand said straps being of less width than saidplates and arr nged ata--..distan'ce from the ends of said p ates.

I JoHN- M. FEDDERS.

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